Muhammad Arman Liaqat

National University of Sciences and Technology

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Zakir Hussain

National University of Sciences and Technology

Muhammad Imran

University of the Punjab

Liviu Mitu

University of Pitesti

Tariq Mahmud

Lancaster University

Sofia Javed

National University of Sciences and Technology

Muzamil Ahmad Khan

National University of Sciences and Technology

Zikriya Khan

National University of Sciences and Technology

Usman Liaqat

National University of Sciences and Technology

Muhammad Aftab Akram

National University of Sciences and Technology

Hafiz Abdul Samad

NED University of Engineering and Technology

Cooperative Institutions

National University of Sciences and Technology

University of Agriculture Faisalabad

University of the Punjab

International Islamic University, Islamabad

University of Veterinary and Animal Sciences

Islamia University of Bahawalpur

University of the Sciences

Quaid-i-Azam University

University of Faisalabad

University College of Islamabad

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Synthesis, Characterization and Biological Study of a New Mannich Base, 2-[(4-fluorophenyl)(phenylamino)methyl] cyclopentanone (FPC) and its Transition Metal Complexes with Cu(II), Ni(II), Co(II), Fe(II) and Zn(II)

Revista de Chimie (2017)

Muhammad Arman Liaqat Tariq Mahmud Muhammad Imran Mazhar Iqbal Muhammad Muddassar

One pot Mannich reaction involving three components (4-fluorobenzaldehyde, aniline, cyclopentanone) was performed using ethanol as a solvent. The resulting Mannich base (FPC) was isolated and further reacted with chloride salts of Cu(II), Ni(II), Co(II), Fe(II) and Zn(II) ions to afford respective metal complexes. The structure of synthesized ligand and transition metal complexes were elucidated on the basis of IR, 1H NMR, 13C NMR, mass spectroscopy and elemental analysis. The geometries of the resulting complexes were proposed on the basis of electronic spectroscopic data and magnetic moment. The anti-enzymatic activity of the ligand and its metal complexes were carried out against urease. FPC shows potent antiurease activity with IC50 value (0.83� 0.002 �M) which is greater than standard. The Cu-complex shows excellent inhibitory action with IC50 value (16.87� 0.03 �M) while other complexes i.e Co-complex (35.59� 0.04 �M) and Ni-complex (49.93� 0.01 �M) exhibit good to moderate IC50 values as compared with control thiourea (IC50 value, 21.25� 0.15 �M). Molecular docking studies were also done on the antiurease activities of FPC and its complexes.

Mannich base

Proton NMR

10.37358/rc.17.11.5928

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Citations (2)

Biopolymer blended films of poly(butylene succinate)/cyclic olefin copolymer with enhanced mechanical strength for packaging applications

Journal of Applied Polymer Science (2020)

Sadia Janjua Zakir Hussain Zikriya Khan Muhammad Arman Liaqat Malik Adeel Umer

Abstract The demand for biodegradable materials is on the rise because humanity is now more concerned about a sustainable lifestyle than ever before. In this regard, we present solution casting synthesized novel biopolymer blended films of poly(butylene succinate)/cyclic olefin copolymer (PBS/COC) for packaging applications. These films were characterized by X‐ray diffraction (XRD), Fourier transform infrared microscopy (FTIR), scanning electron microscopy (SEM), universal tensile testing (ASTM D882 standard), and antibacterial Disc diffusion tests using gram‐negative Escherichia coli ( E.coli ) and gram‐positive Staphylococcus aureus ( S.aureus ) bacteria. The XRD and FTIR revealed the type of bonding to be physical in‐between the constituent polymers; ensuring the biodegradable nature of their blends, while the thickness of films was found to be <100 μm. The SEM, tensile, and antibacterial testing concluded that 30%PBS with 70%COC by weight blending is the best composition; showing a compact/pin‐holes free morphology, the highest strength of 91 MPa, and contact inhibition with E.coli and S.aureus bacteria.

Biopolymer

10.1002/app.50081

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Citations (13)

Antibacterial activity studies of Co(II), Ni(II), Cu(II) and Zn(II) complexes with Mannich base ligand

Bulletin of the Chemical Society of Ethiopia (2019)

A. Farooq Muhammad Imran A. Farooq Saba Latif Muhammad Arman Liaqat

A Mannich base ligand (L) was prepared by reacting 2-mercaptobenzimidazole, diphenylamine and benzaldehyde. This ligand (L) was further used for the preparation of four metal complexes with Co(II), Ni(II), Cu(II) and Zn(II) ions. The reactions were monitored by TLC. The synthesized compounds were structurally characterized using FTIR spectroscopy, UV-Visible spectroscopy, 1H- and 13C-NMR spectroscopy, ICP-OES/atomic absorption spectroscopy. It has been observed that the ligand (L) behaved in a monoanionic bidentate mode and the geometry of resulting complexes was tetrahedral. Conductivity analysis revealed their non-electrolytic nature. Antibacterial activity of the synthesized compounds was assessed through an agar well diffusion method against four strains of Gram-negative bacteria. L-Zn(II) complex showed best activity at all four concentrations against the four strains of Gram-negative bacteria. KEY WORDS: Metal complexes, Mannich bases, 2-Mercaptobenzimidazole, Antibacterial activity Bull. Chem. Soc. Ethiop. 2019, 33(3), 485-492.DOI: https://dx.doi.org/10.4314/bcse.v33i3.9

Benzaldehyde

Mannich base

10.4314/bcse.v33i3.9

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Studying the effect of nHAP on the mechanical and surface properties of PBS matrix

Journal of Polymer Research (2021)

Mamoon Asif Muhammad Arman Liaqat Muzamil Ahmad Khan Hasan Ahmed Mussayib Quddusi

Filler (materials)

10.1007/s10965-021-02711-x

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Synthesis, characterization and antiurease activities of a novel Mannich base 1-[(4-methoxyphenyl)(2-methylidenecyclohexyl)methyl]pyrrolidine (MMP) and its complexes with Cu (II), Ni (II), Co (II), and Fe (II) ions

Inorganic and Nano-Metal Chemistry (2017)

Muhammad Arman Liaqat Tariq Mahmud Abdul Hameed Mohammad Ashraf Muhammad Shafiq

Mannich base 1-[(4-methoxyphenyl)(2-methylidenecyclohexyl)methyl]pyrrolidine (MMP) was synthesized by condensing cyclohexanone, 4-methoxybenzaldehyde, and pyrrolidine together using ethanol as solvent. The synthesized ligand was further made to react with CuCl2, NiCl2, CoCl2, and FeCl2 to afford their respective complexes. Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H NMR), carbon thirteen nuclear magnetic resonance (13C NMR), thermogravimetric analysis (TGA), and mass spectrometry (MS) were used to characterize the ligand and its complexes. The proposed geometries of the complexes were established on the basis of metal–ligand ratio through atomic absorption spectroscopy (AAS). The synthesized compounds were analyzed for their antiurease potential. Mannich base showed moderate antiurease activity with an IC50 value of 224.83 ± 0.84 μM. Complexes with Ni (II) and Fe (II) exhibited potent antiurease activity (4.41 ± 0.003, 5.21 ± 0.003 μM, respectively) while the Co (II) complex showed excellent (46.52 ± 0.05 μM) antiurease activity and poor antiurease activity was shown by the Cu (II) complex (424.32 ± 0.96 μM) as compared with the standard thiourea (21.25 ± 0.15 μM). Docking studies of the ligand were also consistent with the experimental results.

Pyrrolidine

Mannich base

Thermogravimetric analysis

Proton NMR

10.1080/24701556.2017.1322613

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Fabrication of 2-D Nanosheets of NbSe2 via Liquid Phase Exfoliation and Their Morphological, Structural, and Optical Characterization

Ayesha Jamshed Maryam Basit Saqib Ali Sumbal Hakeem Muhammad Arman Liaqat

The present work is on the synthesis and investigation of the structural, optical, and optoelectrical properties of NbSe2 as an efficient material for energy conversion applications. The liquid phase exfoliation method was employed for the synthesis of 2D nanosheets from the bulk NbSe2 at different exfoliation levels. SEM was used to confirm the physical dimensions of the nanosheets, while XRD was used to verify the structural retention of hexagonal nanosheets. The results demonstrate that high-quality, single-crystalline NbSe2 nanosheets with a size of ≈1 μm in the lateral dimension and ≈6–12 nm thick were obtained. The 2D nanosheets will be further explored for energy storage and conversion applications.

Exfoliation joint

Characterization

10.3390/materproc2024017027

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Ultrahigh performance asymmetric supercapacitor devices with synergetic interaction between metal organic frameworks/graphene nano platelets and redox additive electrolyte

Journal of Alloys and Compounds (2021)

Adeel Akram Muhammad Arman Liaqat Sofia Javed Muhammad Imran Hamid Usman Ali

Power density

10.1016/j.jallcom.2021.161961

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Citations (24)